Water grinding drill trolley for excavating small-cavity tunnel

Abstract

The utility model discloses a water milling drill trolley for excavating a small-cavern tunnel, which belongs to the technical field of cavern tunnel excavation and comprises a cavern tunnel. The water grinding drill trolley assembly is arranged in the cavern tunnel, and the water grinding drill trolley assembly comprises a movable trolley frame, a three-axis movable module installed on the top face of the movable trolley frame, a rotating motor ascending and descending on the upper portion of the three-axis movable module and a water grinding drill fixedly installed on an output shaft of the upper portion of the rotating motor; wherein positioning side wheels are horizontally installed on the outer walls of the two sides of the movable trolley frame in a telescopic mode, the two positioning side wheels are pushed to abut against the inner walls of the two sides of the cavern tunnel through telescopic components, and the positioning side wheels make rolling friction contact with the inner walls of the cavern tunnel. According to the drilling device, the accuracy of the drilling position is improved, the drilling angle and depth are allowed to be rapidly adjusted, and the drilling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel excavation technology, and in particular to a water-powered drilling rig for excavating small tunnels. Background Technology

[0002] In tunnel engineering, especially in the excavation of small-compartment tunnels, traditional drilling equipment and techniques have many limitations and shortcomings. As modern tunnel construction demands increasing precision, efficiency, and safety, the shortcomings of existing technologies are becoming increasingly apparent, necessitating a more advanced and efficient solution.

[0003] Traditional drilling equipment typically uses fixed or semi-fixed installation methods, lacking the ability for multi-dimensional movement and precise positioning. In narrow and irregularly shaped tunnels, this equipment struggles to achieve high-precision drilling operations, easily leading to deviations. Furthermore, in small tunnels, traditional equipment struggles to automatically center and maintain a stable position, usually requiring external auxiliary tools or manual adjustment. This not only increases operational difficulty but can also cause the equipment to deviate from its intended position during operation, affecting drilling accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a water-powered drilling rig for excavating small-cavity tunnels, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-powered drilling rig for excavating small-chamber tunnels, comprising:

[0006] Caverns and tunnels;

[0007] The water-grinding drill trolley assembly is installed in the cavern tunnel. The water-grinding drill trolley assembly includes a mobile trolley frame, a three-axis mobile module installed on the top surface of the mobile trolley frame, a rotary motor that is raised and lowered on the top of the three-axis mobile module, and a water-grinding drill fixedly installed on the upper output shaft of the rotary motor.

[0008] The mobile trolley frame has horizontally telescopically mounted positioning side wheels on both outer walls. Both positioning side wheels are pushed against the inner walls of the tunnel via telescopic components, and the positioning side wheels make rolling friction contact with the inner walls of the tunnel.

[0009] In a preferred embodiment of this solution, the mobile trolley frame includes four trolley supports arranged in a rectangular pattern and a trolley top plate welded to the top of the four trolley supports. Each trolley support is fixed with a caster wheel at its bottom.

[0010] In a preferred embodiment, the three-axis moving module includes two inverted U-shaped support columns symmetrically welded to the top surface of the trolley roof, a Y-axis guide rail installed on the top surface of the two U-shaped support columns, and an X-axis guide rail slidably connected between the two Y-axis guide rails.

[0011] In a preferred embodiment, an X-axis slide block is slidably connected to the top surface of the X-axis guide rail, a hydraulic lifting column is longitudinally mounted on the top surface of the X-axis slide block, and a lifting plate is fixed to the top of the hydraulic lifting column.

[0012] In this preferred embodiment, the rotary motor is fixed to the top surface of the lifting plate, and two positioning rods are symmetrically welded to both sides of the hydraulic lifting column and to the bottom surface of the lifting plate.

[0013] In this preferred embodiment, both positioning rods longitudinally penetrate the outer sides of the ear plates on both sides of the X-axis slide. The hydraulic lifting column drives the lifting plate, the rotary motor, and the water-jetting drill to move up and down, and the positioning rods move up and down within the ear plates of the X-axis slide.

[0014] In a preferred embodiment, a tool cavity is located below the top plate of the trolley and above the mobile trolley frame, and a support buffer plate is longitudinally arranged in the middle of the tool cavity.

[0015] In a preferred embodiment of this design, the supporting buffer plate has a buffer assembly in the middle. The buffer assembly includes multiple hydraulic buffer dampers installed on the top surface of the lower supporting buffer plate and buffer springs sleeved around the hydraulic buffer dampers.

[0016] In this preferred embodiment, side support plates are welded between two adjacent trolley supports on both sides of the inner wall of the tunnel chamber. An electric push-pull rod is fixed at the middle position of the outer wall of each side support plate. A horizontal U-shaped clamping plate is fixed to the free end of the electric push-pull rod. The positioning side wheel is rotatably installed in the U-shaped clamping plate.

[0017] In this preferred embodiment, each of the U-shaped card plates has an extension plate welded to its outer walls on both sides, and a positioning crossbar welded to the inner wall of each extension plate. The two positioning crossbars pass through the side support plate laterally and are connected by bolts to form a limit link. An installation plate is integrally formed in the middle of the limit link. An air buffer spring is installed on the inner wall of each installation plate, and the end of the air buffer spring away from the installation plate elastically abuts against the inner wall of the side support plate.

[0018] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0019] This water-cooled drilling rig, used for excavating small-chamber tunnels, employs an electric push-pull rod to control the extension and retraction of the U-shaped clamping plate and positioning side wheels. This ensures the rig assembly is firmly fixed to the tunnel wall during operation, enhancing overall stability. This design is particularly important in irregular or narrow tunnel environments. A multi-layered shock absorption system, consisting of hydraulic dampers, buffer springs, and air buffer springs, effectively absorbs the impact and vibration generated during drilling, protecting critical components and extending the equipment's service life. Simultaneously, the shock absorption system improves the working environment, reducing the impact of noise and vibration on operators.

[0020] The positioning side wheels automatically center the water-grinding drilling rig assembly within the tunnel chamber and maintain its stable position. This automated positioning method reduces manual intervention, further improving drilling accuracy and efficiency. By incorporating a three-axis movement module on the water-grinding drilling rig assembly, precise movement of the drilling machine in three-dimensional space is achieved. This not only improves the accuracy of the drilling position but also allows for rapid adjustments to the drilling angle and depth, significantly enhancing drilling efficiency.

[0021] The multi-directional adjustment and lifting design of the water-cooled drilling rig allows it to move freely in three-dimensional space, meeting drilling needs at different positions and angles. This design not only improves drilling flexibility and accuracy but also enables rapid adjustment of drilling parameters according to actual working conditions, greatly enhancing work efficiency. The positioning side wheels automatically center the water-cooled drilling rig assembly within the tunnel chamber and assist in its forward movement. This design reduces the time and difficulty of manual adjustments, ensuring the continuity and stability of the drilling process. The rolling friction contact between the positioning side wheels and the tunnel wall significantly reduces resistance during movement compared to traditional sliding friction, lowering energy consumption and reducing wear on the tunnel wall, thus protecting the tunnel structure. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the water-grinding drill trolley assembly of this utility model;

[0025] Figure 3This is a schematic diagram of the installation structure of the hydraulic buffer damper of this utility model;

[0026] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;

[0027] Figure 5 This is a schematic diagram of the connection structure of the positioning side wheel of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] In the diagram: 1. Cavern / tunnel; 2. Water-powered drilling rig assembly; 3. Rig support; 4. Rig top plate; 5. Side support plate; 6. Water-powered drilling rig; 7. U-shaped support column; 8. Y-axis guide rail; 9. X-axis guide rail; 10. Positioning side wheel; 11. Support buffer plate; 12. Tool chamber; 13. Hydraulic buffer damper; 14. Buffer spring; 15. X-axis slide; 16. Hydraulic lifting column; 17. Lifting plate; 18. Positioning column; 19. Rotary motor; 20. U-shaped clamping plate; 21. Electric push-pull rod; 22. Positioning crossbar; 23. Scale line; 24. Limiting link; 25. Mounting plate; 26. Air buffer spring. Detailed Implementation

[0030] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0031] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0032] This embodiment provides, for example Figures 1 to 5 The water-powered drilling rig shown includes: a tunnel 1 and a water-powered drilling rig assembly 2.

[0033] In this embodiment, the water-grinding drilling rig assembly 2 is disposed in the tunnel 1. The water-grinding drilling rig assembly 2 includes a movable rig frame, a three-axis moving module mounted on the top surface of the movable rig frame, a rotary motor 19 that is raised and lowered on the upper part of the three-axis moving module, and a water-grinding drilling machine 6 fixedly mounted on the upper output shaft of the rotary motor 19. Positioning side wheels 10 are horizontally telescopically mounted on both outer walls of the movable rig frame. Both positioning side wheels 10 are pushed against the inner walls of the tunnel 1 via telescopic components, and the positioning side wheels 10 make rolling friction contact with the inner walls of the tunnel 1. The design of the positioning side wheels 10 not only allows the movable rig frame to be positioned in the center of the tunnel 1, but also facilitates the forward movement of the movable rig frame within the tunnel 1. The multi-directional adjustment and lifting design of the water-grinding drilling machine 6 helps to improve processing efficiency.

[0034] In this embodiment, the mobile trolley frame includes four trolley supports 3 arranged in a rectangular pattern and a trolley top plate 4 welded to the top of the four trolley supports 3. Each trolley support 3 has a caster wheel fixed to its bottom.

[0035] In this embodiment, the three-axis moving module includes two inverted U-shaped support columns 7 symmetrically welded to the top surface of the trolley top plate 4, a Y-axis guide rail 8 installed on the top surface of the two U-shaped support columns 7, and an X-axis guide rail 9 slidably connected between the two Y-axis guide rails 8.

[0036] In this embodiment, an X-axis slide block 15 is slidably connected to the top surface of the X-axis guide rail 9, and a hydraulic lifting column 16 is longitudinally installed on the top surface of the X-axis slide block 15. A lifting plate 17 is fixed to the top of the hydraulic lifting column 16.

[0037] In this embodiment, the rotary motor 19 is fixed on the top surface of the lifting plate 17, and two positioning rods 18 are symmetrically welded on both sides of the hydraulic lifting column 16 and on the bottom surface of the lifting plate 17.

[0038] In this embodiment, both positioning rods 18 extend longitudinally through the outer sides of the ear plates on both sides of the X-axis slide 15. When the hydraulic lifting column 16 drives the lifting plate 17, the rotary motor 19, and the water mill drill 6 to move up and down, the positioning rods 18 move up and down in the ear plates of the X-axis slide 15, which can longitudinally position the rotary motor 19 and the water mill drill 6 to prevent tilting or misalignment.

[0039] In this embodiment, a tool cavity 12 is located below the top plate 4 of the trolley and above the mobile trolley frame, and a support buffer plate 11 is longitudinally arranged in the middle of the tool cavity 12.

[0040] In this embodiment, the supporting buffer plate 11 has a buffer assembly in the middle. The buffer assembly includes multiple hydraulic buffer dampers 13 installed on the top surface of the lower supporting buffer plate 11 and buffer springs 14 sleeved around the hydraulic buffer dampers 13. The top of the hydraulic buffer damper 13 is fixedly connected to the bottom surface of the upper supporting buffer plate 11, and the top of the buffer spring 14 elastically abuts against the bottom surface of the upper supporting buffer plate 11.

[0041] In this embodiment, side support plates 5 are welded between two adjacent trolley supports 3 on both sides of the inner wall of the tunnel 1. An electric push-pull rod 21 is fixed in the middle of the outer wall of each side support plate 5. A horizontal U-shaped card plate 20 is fixed to the free end of the electric push-pull rod 21. The positioning side wheel 10 is rotatably installed in the U-shaped card plate 20.

[0042] In this embodiment, each U-shaped clamping plate 20 has an extension plate welded to its outer walls on both sides, and a positioning crossbar 22 welded to the inner wall of each extension plate. Both positioning crossbars 22 transversely penetrate the side support plate 5 and are connected by bolts to a limiting link 24. A mounting plate 25 is integrally formed in the middle of the limiting link 24. An air buffer spring 26 is installed on the inner wall of each mounting plate 25, with the end of the air buffer spring 26 away from the mounting plate 25 elastically abutting against the inner wall of the side support plate 5. Graduation lines 23 are integrally formed at both ends of each limiting link 24, and these graduation lines 23 are fastened together with the positioning crossbars 22 by bolts.

[0043] Working principle:

[0044] The water-cooled drilling rig 2, used for excavating small-chamber tunnels, is transported into the tunnel 1 via a transport vehicle and placed in the predetermined starting position. The electric push-pull lever 21 is activated, pushing the U-shaped clamping plate 20 outwards so that the positioning side wheels 10 contact the inner walls of both sides of the tunnel 1. The design of the positioning side wheels 10 ensures that the water-cooled drilling rig 2 remains centered in the tunnel 1 and can move forward or backward as needed.

[0045] According to design requirements, the hydraulic lifting column 16 is operated to adjust the height of the lifting plate 17, thereby setting the working height of the water-grinding drill 6. The positioning column 18 provides support and guidance during this process, ensuring the verticality of the rotary motor 19 and the water-grinding drill 6. The position of the water-grinding drill 6 is precisely adjusted by sliding the X-axis slide 15 along the X-axis guide rail 9 and moving along the Y-axis guide rail 8, aligning it with the target drilling point. This process can be precisely positioned using the scale line 23 to ensure the accuracy of the drilling position.

[0046] After confirming that all parameters are set correctly, start the rotary motor 19 to drive the water-grinding drill 6 to begin rotating. At this time, the water-grinding drill 6 will perform drilling operations at the designated position. During the drilling process, if it is necessary to adjust the drilling angle or depth, this can be achieved by operating the X-axis slide 15, Y-axis guide rail 8, and hydraulic lifting column 16 again. In addition, if it is necessary to drill multiple holes continuously, the working position can be changed by moving the water-grinding drill trolley assembly 2.

[0047] Throughout the drilling process, a multi-layered vibration damping system consisting of a hydraulic damper 13, a buffer spring 14, and an air buffer spring 26 continuously operates, absorbing the impact from drilling and the reaction forces from the tunnel wall 1, protecting the equipment from damage, and reducing the impact of vibration on workers and the surrounding environment. When the positioning side wheel 10 is subjected to excessive pressure, the limiting link 24 restricts its further extension, preventing mechanical damage due to excessive pressure. The mounting plate 25 serves as a fixing point for one end of the limiting link 24, enhancing the system's vibration resistance.

[0048] After completing the scheduled drilling task, stop operating the rotary motor 19 and the water-jet drilling rig 6. Retract the U-shaped clamping plate 20 and positioning side wheels 10 using the electric push-pull rod 21, disengaging the water-jet drilling rig assembly 2 from the inner wall of the tunnel 1. According to the construction plan, the water-jet drilling rig assembly 2 can be moved to the next work location or removed from the tunnel 1 to prepare for subsequent procedures.

[0049] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-powered drilling rig for excavating small-chamber tunnels, characterized in that, include: Cavern tunnel (1); The water-grinding drill trolley assembly (2) is set in the cavern tunnel (1). The water-grinding drill trolley assembly (2) includes a mobile trolley frame, a three-axis mobile module installed on the top surface of the mobile trolley frame, a rotary motor (19) that is raised and lowered on the top of the three-axis mobile module, and a water-grinding drill (6) that is fixedly installed on the upper output shaft of the rotary motor (19). The two outer walls of the mobile trolley frame are horizontally telescopically equipped with positioning side wheels (10). The two positioning side wheels (10) are pushed against the inner walls of the tunnel (1) on both sides through telescopic components. The positioning side wheels (10) are in rolling friction contact with the inner walls of the tunnel (1).

2. The water-powered drilling rig for excavating small-chamber tunnels according to claim 1, characterized in that: The mobile trolley frame includes four trolley supports (3) arranged in a rectangular pattern and a trolley top plate (4) welded to the top of the four trolley supports (3). Each trolley support (3) has a caster wheel fixed to its bottom.

3. A water-powered drilling rig for excavating small-chamber tunnels according to claim 2, characterized in that: The three-axis moving module includes two inverted U-shaped support columns (7) symmetrically welded to the top surface of the trolley top plate (4), a Y-axis guide rail (8) installed on the top surface of the two U-shaped support columns (7), and an X-axis guide rail (9) slidably connected between the two Y-axis guide rails (8).

4. A water-powered drilling rig for excavating small-chamber tunnels according to claim 3, characterized in that: The top surface of the X-axis guide rail (9) is slidably connected to an X-axis slide block (15), and a hydraulic lifting column (16) is longitudinally installed on the top surface of the X-axis slide block (15). A lifting plate (17) is fixed at the top of the hydraulic lifting column (16).

5. A water-powered drilling rig for excavating small-chamber tunnels according to claim 4, characterized in that: The rotary motor (19) is fixed on the top surface of the lifting plate (17), and two positioning rods (18) are symmetrically welded on both sides of the hydraulic lifting column (16) and on the bottom surface of the lifting plate (17).

6. A water-powered drilling rig for excavating small-chamber tunnels according to claim 5, characterized in that: Both positioning rods (18) extend longitudinally through the outer sides of the ear plates on both sides of the X-axis slide (15). The hydraulic lifting column (16) drives the lifting plate (17), the rotary motor (19), and the water mill drill (6) to move up and down. The positioning rods (18) move up and down in the ear plates of the X-axis slide (15).

7. A water-powered drilling rig for excavating small-chamber tunnels according to claim 6, characterized in that: The tool cavity (12) is located below the top plate (4) of the trolley and above the mobile trolley frame. A support buffer plate (11) is longitudinally arranged in the middle of the tool cavity (12).

8. A water-powered drilling rig for excavating small-chamber tunnels according to claim 7, characterized in that: The supporting buffer plate (11) has a buffer assembly in the middle. The buffer assembly includes multiple hydraulic buffer dampers (13) installed on the top surface of the supporting buffer plate (11) at the bottom and buffer springs (14) sleeved around the hydraulic buffer dampers (13).

9. A water-powered drilling rig for excavating small-chamber tunnels according to claim 8, characterized in that: Side support plates (5) are welded between two adjacent trolley supports (3) on both sides of the inner wall of the tunnel (1). An electric push-pull rod (21) is fixed in the middle of the outer wall of each side support plate (5). A horizontal U-shaped card plate (20) is fixed at the free end of the electric push-pull rod (21). The positioning side wheel (10) is rotatably installed in the U-shaped card plate (20).

10. A water-powered drilling rig for excavating small-chamber tunnels according to claim 9, characterized in that: Each of the U-shaped plates (20) has an extension plate welded to its outer side walls, and each extension plate has a positioning crossbar (22) welded to its inner wall. The two positioning crossbars (22) pass through the side support plate (5) laterally and are connected by bolts to a limiting link (24). The limiting link (24) has an integrally formed mounting plate (25) in the middle. Each mounting plate (25) has an air buffer spring (26) installed on its inner wall. The end of the air buffer spring (26) away from the mounting plate (25) elastically abuts against the inner wall of the side support plate (5).

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